r/5 - 6=-15-6=-1
The given equation is r/5 - 6 = -15 - 6.
To solve this equation, we can start by isolating r/5 by adding 6 to both sides of the equation:
r/5 = -15 - 6 + 6
r/5 = -15
Next, we can multiply both sides of the equation by 5 to get rid of the fraction:
5 * (r/5) = 5 * (-15)
r = -75
Therefore, the value of r that satisfies the equation is r = -75.